50 lines
1.4 KiB
PHP
50 lines
1.4 KiB
PHP
<?php
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/**
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* @copyright Copyright (c) 2017, ownCloud GmbH
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*
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* @author Thomas Müller <thomas.mueller@tmit.eu>
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*
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* @license AGPL-3.0
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*
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* This code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License, version 3,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License, version 3,
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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*
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*/
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namespace OC\DB;
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use OCP\IDBConnection;
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/**
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* Various MySQL specific helper functions.
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*/
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class MySqlTools {
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/**
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* @param Connection $connection
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* @return bool
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*/
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public function supports4ByteCharset(IDBConnection $connection) {
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foreach (['innodb_file_format' => 'Barracuda', 'innodb_large_prefix' => 'ON', 'innodb_file_per_table' => 'ON'] as $var => $val) {
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$result = $connection->executeQuery("SHOW VARIABLES LIKE '$var'");
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$rows = $result->fetch();
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$result->closeCursor();
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if ($rows === false) {
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return false;
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}
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if (strcasecmp($rows['Value'], $val) !== 0) {
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return false;
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}
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}
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return true;
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}
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}
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